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#1
11-08-2008, 01:59 PM
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2000 Grand Prix Secondary air pump
Hi All,
I have a 2000 Grand Prix GT 3.8L My secondary air pump finally went after 8 years and 103,000 miles. When I brought my car to my mechanic he replaced the pump as well as did an conversion kit to re-routue the intake. Well I have replaced this pump 4 times already...and each time it was replaced my mechanic told me he found the pump filled with water, now just for the record I don't go swimming with this car...nor do I drive thru all the puddles in the road. I just got back from the 4 th pump bieng replaced and when I shut the car off the pump just kept running and wasn't able to turn it off unless I disconnected the battery. So I just disconnected the pump.......HAS ANYONE ever had this problem with this pump before.......????? Is it possible whatever tells this pump to go on is broken......To be be honest I don't know what this pump does...  Any help would be apreciated..... 
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#2
11-08-2008, 08:29 PM
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Re: 2000 Grand Prix Secondary air pump
The moror is constantly supplied 12v and the comuter controlls the ground to turn it on/off. Check for a short to ground on the ground side of the motor.
The air pump pumps fresh air into the exhaust to more thouroughly burn all fuel that may make it out of the engine.
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'04 Cavalier coupe M/T 2.2 Ecotec Supercharged 14 PSI boost, charge air cooler, 42# injectors Tuned with HP Tuners Poly engine/trans/control arm bushings Self built and self programmed progressive methanol injection system
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#3
11-08-2008, 09:22 PM
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Re: 2000 Grand Prix Secondary air pump
I didn't know GP's have air pumps. Mine doesnt (that I know of).
Take it back to the initial mechanic and have him check out his ductwork.
__________________
-2000 Grand Prix GTP 170,000mi (daily driver) -2000 Olds Alero 100,000mi (soon to be DD with gas at $3.45/gal) -1997 Chev K1500 4x4 115,000mi (Natalie's truck [nans_grandprix]) AF "2.0" Community Guidelines Conservative Victory 2012!!! "I'll Keep my Guns, Freedom, and Money. You can Keep the Change!" ----->>>>> Did You Know? <<<<<-----
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#4
11-09-2008, 10:16 AM
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Re: 2000 Grand Prix Secondary air pump
The secondary air pump was for LEV III emissions certification and whether your car was delivered to and sold in a green state. New York is a green state and basically follows California emissions control standards.
There is a GM TSB out that covers adding a plastic protective shield to the pump so it doesn't suck in water.
__________________
'08 Pontiac Grand Prix GXP (Dark Slate Metallic) - LS4 5.3L V8 '02 Oldsmobile Alero GL2 - LA1 3400 V6 '99 Buick Regal LS - L36 Series II 3800 V6 '03 Honda CR250R MX - 2 Stroke 250cc '97 Pontiac Grand Prix GTP - L67 Series II 3800 V6 Supercharged (Sold) Timeslip 08/12/06 AF Community Guidelines
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